Car-heater



(No Model.)

G. W'. RODGERS.

GAR HEATER.

No. 499,594. PatenQe-dJune 13, 1893.

UNITED STATES APATENT OFFICE.

GEORGE W. RODGERS, OE BELLEFONTE, PENNSYLVANIA, ASSIGNOR OF TWO- THIRDSTO ISAAC THOMAS, OE SAME PLACE, AND ABRAM S. VALENTINE,

OF ATLANTIC CITY, NEW JERSEY.

C A R H EAT E R SPECIFICATION forming part of Letters Patent No.499,594, dated .T une 13, 1893.

Application filed June 30, 1892. Serial No. 438,566. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. RODGERS, a citizen of the United States,residing at Bellefonte, in the county of Centre and State ofPennsylvania, have invented a new and useful Car-Heater, of which thefollowing is a specification.

This invention relates to car heaters; and it has for its object toprovide an improved car heater which furnishes the heat to the radiatorsofthe several cars of a train, while such train is either in motion orat rest.

To this end the main and primary object is to provide an improvement incar heaters which derives its heat from the escaping products ofcombustion of the locomotive boiler and which is constructed withspecial reference to simplicity and efficiency.

With these and many other objects in view which will readily appear asthe nature of the invention is better understood, the same consists inthe novel construction, combination and arrangement of parts hereinaftermore fully described, illustrated and claimed.

In the accompanying drawing the figure represents an elevation of thefront end of a locomotive boiler partly in section, and a verticalsectional view partly in elevation of the car heater within said boiler.

Referring to the accompanying drawing:- A represents the front end of alocomotive boiler terminating in the smoke box B, in front of the frontend of the iues, at b, illustrated by dotted lines, and from which thesmoke and other products of combustion escape through the ordinary smokestack C.

Supported within the smoke box B is the main heat box D, having theinclosing top and bottom plates e', connected bya series of steam ues E,opening into the upper and lower steam chambers E and E', respectively,which chambers inclose the open ends of said flues and are formed by theswelled or flared heads or cap plates d', removably secured to the topand bottom plates d of said main heat box. The cold air is passedthrough the pipe F from the outside of the boiler into the rear end ofthe closed heat box so that as the air passes around said tlues or tubesthe same is heated by the exhaust steam passing therethrough from thelowerto the upper steam chamber, the same being led through the exhauststeam pipe G, by means of piping led from the cylinders of thelocomotive when the engine is traveling, but when the locomotive is atrest, through the auxiliary steam pipe G', opening into the lower steamchamberand connected with the boiler at a suitable point of attachmentso as to be under the control of the engineer. The air supply pipe F,before referred to, leads from the water separator box H arranged uponthe outside of the locomotive and to one end of which is conn'ected thesteam pipe F', within which is arranged the steam injector E2, arrangeddirectly below the cold air funnel F3, which is disposed toward thefront end of the locomotive so as to collect and force the cold airintothe heat box D, while the locomotive is ruuning or at rest, the said airbeing partially heated by the steam through the pipe F', which alsoserves to draw the air through said funnel and force it into theseparator. It will be readily seen that the steam coming in contact withthe cold air will be rapidly condensed and the water of condensationtogether withk the heated air will be carried into the water box H, fromwhich the air now heated by the steam to a certain degree, passesthrough the pipe E into the box D, while the water collects in the boxor chamber H and finds escape through a suitable discharge pipe H in thebottom thereof, and to which may be connected a suitable trap. The topand bottom plat-es d of said heat box D are extended at their front endsto form an enlarged hot air space I, and are flanged as att' to receiveand support the lower plate of the inclined auxiliary or gridiron heaterJ. The said auxiliary or gridiron heater J comprises the upper and lowerperforated plates j and j', respectively, the lower one of which isremovably clamped to the flanges of the plates d, and the connecting hotair tubes K, connecting said plates and exposed exteriorly to the heatwithin the smoke box of the boiler. The hot air passing from around thesteam tubes E within the hot air box passes from the hot air space Ithrough the heat tubes K and into the outer heat chamber L inclosing theopen outer ends of the tubes within the upper plate j. The air by thistime is heated to a high degree of temperature and is led from the heatchamber L through the circulating pipe M, outside of the boiler to theseveral radiators of the cars. From the radiators the heat is ledthrough the return pipe N back into the smoke box of the locomotive,where such pipe terminates in a turned discharge end n, alongside of andprojecting above the movable exhaust nozzle O. The said exhaust nozzle Ois removably connected to the upper steam chamber so that the same canbe removed at any time desired, and the steaml escaping therethrough andaround the discharging end n of the return pipe creates an addition-alsuction through said return pipe, which materially assists thecirculation throughout the line of piping. The said return pipe N isfurther providedat a point outside of the boiler with the ejector Pthroughv which steam is passed from the pipe Q, under the control of theengineer so that when the train is at rest, said ejector, inconnectionwith the injector, combines to provide for a perfectcirculation of the cold air into the heater and for the utilized hot airfrom the radiators as already described. If found desirable the returnpipe N may be led to the fire box of the locomotive so that an increaseddraft may be obtained and the combustion within the fire box greatlyaided.

From the foregoing it will be readily understood that an improved carheater is provided which not only provides means for thoroughly heatingcold air and leading the same to the radiators of the car while thetrain is in motion,but also While the same isat rest, and it is thoughtthat the construction, operation and many advantages of the same will beapparentpwithout further description.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a car heater, the combination with a locomotive boiler smoke-box;of a main heat box arranged within the smoke box, a series of Verticalsteam tubes passing vertically through the heat box and connecting thetop and bottom plates thereof, said heat box being enlarged at one endto form a hot air space, steam chambers inclosing the upper and lowerends of said tubes above and below the top and bottom plates of saidbox, a steam pipe leading into the lower chamber over the lower openends of said tubes, a cold air suction supply pipe connected to one endof said heat box, an exposed auxiliary heater connected directly withthe hot air space of the heat box at the other end thereof, and a hotair circulating pipe connected to said auxiliary heater and leading tothe car radil ators, substantially as set forth.

2. In a car heater, a tubed heat box, steam chambers arranged upon thetop and bottom of said heat box, a movable steam escape funnel securedto the top of the upper steam chamber, a hot air circulating pipeleading from the heat box to the radiators of the system, a return pipeleading from said radiators and having a discharging end arrangedalongside of and projecting above said escape funnel', and an auxiliarysteam ejector pipe connected with said return pipe, substantially as setforth.

8. In a car heater, a tubed heat box adapted to be arranged within theboiler smoke box and having extended flanged sides and an enlarged hotair spaceinclosed by said extended sides, steam chambers removablyarranged upon the top and bottom of said heat box, an exposed auxiliaryor gridiron heater removably secured to the iianged plates of the mainheat box, and a circulating pipe connected to said auxiliary heat-er,substantially as set forth.

4. In a car'heaten-a tubed heat box arranged within the boiler smokebox, heating steam chambers inclosing the open ends of the tubes passingthrough the heat box, said heat box being provided with an enlarged hotair space at one end, an auxiliary or gridiron heater leading from saidhot air space and comprising upper and lower perforated plates and hotair tubes connecting said plates, a heat chamber inclosing the openouter ends of said heat tubes, a circulating pipe leading from said heatchamber, and a return pipe leading vback into the smoke box,substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto aixed mysignature in the presence of two witnesses.

GEO. W. RODGERS.

Witnesses:

E. M. BLANCHARD, WILLIAM W. BELL.

